seiche
Enclosed water rocking
A seiche is a standing wave that oscillates in an enclosed or partially enclosed body of water—a lake, bay, or harbor.
Unlike ocean waves driven by wind, seiches result from atmospheric pressure changes, seismic activity, or strong winds pushing water to one end, which then sloshes back and forth like water in a bathtub: The seiche caused water levels to fluctuate several feet over the course of an hour.
Maximum oscillation displacement
- periodPunctuation ending sentences
- frequencyRate of recurrence
- resonanceAmplified oscillation at natural frequency
- harmonicOf musical overtones
node · standing wave · antinode · damping · natural frequency · wavelength · phase · cycle
Rapid temperature-change layer
- stratificationDivision into distinct levels
- upwellingDeep water rising surfaceward
- water displacementVolume of liquid moved aside
- bathymetrySubaqueous topographical measurement
water level · fluctuation · surge · slosh · tilt · rocking · layering
Enclosed body of freshwater
- harborSafe anchorage for ships
- bayPartially enclosed water
- fjordGlacially carved coastal inlet
- reservoirLarge water storage basin
inlet · embayment · coastal · shoreline · dock · marina · waterfront
Seismic ground movement
- landslideMass of earth falling
- barometric pressureWeight of air overhead
- storm surgeWind-driven coastal flooding
- tectonic activityCrustal plate motion
amplitude
Maximum oscillation displacement
- periodPunctuation ending sentences
- frequencyRate of recurrence
- resonanceAmplified oscillation at natural frequency
harmonic · node · standing wave · antinode · damping · natural frequency · wavelength · phase · cycle · pulsation
thermocline
Rapid temperature-change layer
- stratificationDivision into distinct levels
- upwellingDeep water rising surfaceward
- water displacementVolume of liquid moved aside
bathymetry · water level · fluctuation · surge · slosh · tilt · rocking · layering
lake
Enclosed body of freshwater
reservoir · inlet · embayment · coastal · shoreline · dock · marina · waterfront
earthquake
Seismic ground movement
- landslideMass of earth falling
- barometric pressureWeight of air overhead
- storm surgeWind-driven coastal flooding
seichetide
Ocean's cyclical swell
tidal wave · ocean swell · tsunami · ocean current · tidal bore